A Bromageden is an epic dude party commonly consisting of 5 or more bros, one or more consecutive all nighters, energy drinks, and lots of video games. This level of enjoyment is only achieved usually one or two times a year. A girl arriving at any Bromageden instantly relegates it to just a party, as Bromageden are exclusively male events. The term was originally coined by a group of high school guys in northern Indiana who threw an epic party once a year.